Google Adwords is a representative case in point. Advertisers can set geographic regions for where their ads will be displayed, choose which websites they'll be published on, and even use keyword settings as a basis for ad placement. This is all possible due to a complex logic computation technology and a massive database that serve as the foundation. In some other advertising agency systems, advertisers can also select the ad format and presentation method, and even track all user behaviors and trajectories online. Through these analyses, more customized, one-on-one advertising solutions can be presented on the ad platform...